Rorýs černý (Czech Wikipedia)

Analysis of information sources in references of the Wikipedia article "Rorýs černý" in Czech language version.

refsWebsite
Global rank Czech rank
88th place
15th place
770th place
3,028th place
2,133rd place
2,167th place
2,886th place
42nd place
low place
low place
115th place
337th place
low place
low place
1st place
1st place
7,756th place
6,843rd place

aba.org

  • LEVAD, Rich. The Coolest Bird [online]. The American Birding Association, 2007. Dostupné online. 

audubon.org

iba.audubon.org

  • Audubon IBAs: Hanging Lake [online]. Dostupné v archivu pořízeném z originálu dne 14 March 2012. 

biolib.cz

  • BioLib.cz – Cypseloides niger (rorýs černý) [online]. BioLib.cz. Dostupné online. 

cbc.ca

  • Staff writers. Unofficial trail in 'secret cave' area of Johnston Canyon closed by Parks Canada to protect unique birds. CBC News. 2018-08-17. Dostupné online [cit. 2018-08-19]. 

denverpost.com

  • LOFHOLM, Nancy. Birders take black swift mystery under their wing. The Denver Post. 3 March 2012. Dostupné online. 

fs.fed.us

  • WIGGINS, David A. Black Swift (Cypseloides niger). A Technical Conservation Assessment [online]. USDA Forest Service, Rocky Mountain Region, 2004. Dostupné online. 

iucnredlist.org

apiv3.iucnredlist.org

  • The IUCN Red List of Threatened Species 2021.3. 9. prosince 2021. Dostupné online. [cit. 2021-12-27].

ouraycolorado.com

  • Ouray, Colorado: Birding [online]. Ouray Chamber Resort Association. Dostupné online. 

web.archive.org

  • Audubon IBAs: Hanging Lake [online]. Dostupné v archivu pořízeném z originálu dne 14 March 2012.